对于一个数列，如果从数列的第2项起，每一项的值都不小于它前面的一项的值，则称这样的数列为递增数列。
我们乐意处理单调递增数列或单调递减数列，因为特别容易确定数列的收敛或发散。
Monotonic sequences are pleasant to work with because their convergence or divergence is particularly easy to determine .
你的输出应该从2992开始到满足需求最大的四位数字结束(数列单调递增)。
Your output is to be 2992 and all larger four-digit Numbers that satisfy the requirements (in strictly increasing order).
2004年北京市健康环境状况总评分的时间动态数列环比均大于1，年均递增速度为8.41%。
Chain index of overall scores for healthy environment indicators in Beijing during 2001 to 2004 was more than unity, with an annual increase of 8.41 percent.
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